Why molecular biology is essential for nanotechnology and biomedical engineering?

Most of the researchers in nanotechnology and biomedical engineering have never worked in molecular biology. Unfortunately, they have no expertise in any field of biology. They work with (nano)biomaterials and publish their research results on proteins, RNA, DNA, etc. without knowing how to work with these biomaterials. It is obvious that when peer-reviewers evaluate the manuscripts concerning biomaterials, they do not consider the expertise of the co-authors. Therefore, many papers are published in nanotechnology and biomedical engineering without any important result in biology. This can reduce the scientific quality of the published papers in these fields. This is why molecular biology is essential for nanotechnology and biomedical engineering.